It is with deep sorrow than the Russian engineering geologists learnt the sad news about the death of the Honorary President IAEG, the founder of our Association Prof. Dr. Marcel Arnould. Our warmest relations first established by Prof. E.M. Sergeev date back as long ago as 1960s. Since then, the name of Marcel Arnould is well known to engineering geologists in Russia, our international ties have become very close and sincere, and many of us have made good friends with Prof. Arnould. During his IAEG Presidency, he made outstanding efforts for promoting the development of our Association; he also played an important role in the integration of the Russian national group into IAEG. His huge personality symbolized a glorious epoch in the IAEG history. We knew Marcel Arnould not only as an outstanding scholar, but also as a very honest, reliable, and hearty person, a man of strict principles, and a true friend. His passing is a great loss to all of us. We would like to convey our sincere condolences to M-me Sandra Arnould, their sons, and all members of their family.